class_docstr: These tests do not consider the case of multiple time steps in one call.
code: def test_p_max_default(self):
      m_max = 55
      expected_p_max = 8
      observed_p_max = _compute_p_max(m_max)
      assert_equal(observed_p_max, expected_p_max)
  
imports: from __future__ import division, print_function, absolute_import
  import numpy
  from numpy.testing import assert_allclose, assert_, assert_equal
  from scipy._lib._numpy_compat import suppress_warnings
  from scipy.sparse import SparseEfficiencyWarning
  import scipy.linalg
  from scipy.sparse.linalg._expm_multiply import _theta, _compute_p_max, _onenormest_matrix_power, expm_multiply, _expm_multiply_simple, _expm_multiply_interval
label_desc: Use image node_id 2 for calling the TestExpmActionSimple obj's underlying member method code with example usage: obj.test_p_max_default() without return types